For me it was 2000AD 690. Picked it up on a whim as a 15 year old on begrudging holiday with my family. It was bang in the middle of the Necropolis story, and everything about it seemed fascinating to me…
It caused me to collect both forwards and backwards, desperate to know what had happened before (which was a lot, since this storyline had been brewing for years) and what happened after.
It was also a gateway drug into US comics, primarily Marvel, but pretty much anything that looked cool at the time. I still have all my physical books, stored in a bunch of long boxes up in the attic that I swear I’ll get down and look at one day, but never do…
Which issue was your gateway drug?
Hellboy is great! One of the peaks of the medium.